过去我们城市没有污染 In the pass there ___ ____ pollution in our city.
问题描述：
过去我们城市没有污染 In the pass there ___ ____ pollution in our city.
答
was no
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答
was no
/
wasn't any
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答
was no
不用not是因为pollution是名词,前面要用no
另外不是in the pass,是in the past.